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EP1391973B1 - Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe - Google Patents

Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe Download PDF

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Publication number
EP1391973B1
EP1391973B1 EP02360231A EP02360231A EP1391973B1 EP 1391973 B1 EP1391973 B1 EP 1391973B1 EP 02360231 A EP02360231 A EP 02360231A EP 02360231 A EP02360231 A EP 02360231A EP 1391973 B1 EP1391973 B1 EP 1391973B1
Authority
EP
European Patent Office
Prior art keywords
glue
conduit
bag
pipe
strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02360231A
Other languages
German (de)
French (fr)
Other versions
EP1391973A1 (en
Inventor
Dr. Hong Li
Klaus Nothofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Nokia Inc
Original Assignee
Alcatel SA
Nokia Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel SA, Nokia Inc filed Critical Alcatel SA
Priority to EP02360231A priority Critical patent/EP1391973B1/en
Priority to DE60202283T priority patent/DE60202283D1/en
Priority to AT02360231T priority patent/ATE285135T1/en
Priority to US10/609,576 priority patent/US20040020822A1/en
Publication of EP1391973A1 publication Critical patent/EP1391973A1/en
Application granted granted Critical
Publication of EP1391973B1 publication Critical patent/EP1391973B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
    • G02B6/508—Fixation devices in ducts for drawing cables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor

Definitions

  • the invention relates to a conduit glue bag and conduit glue strips which shall be glued to the inner wall of a sewer pipe and methods for installing a cable in said sewer pipe by making use of said conduit glue strips.
  • sewer pipes or other underground supply conduits for laying communication cables is a possibility already being exploited to lower the costs of underground work for communications subscriber access. It also enables subscriber access of this kind to be extended , which is becoming increasingly important owing to the multiplicity of operators.
  • Some known techniques for laying communication cables in sewer pipes are for example the use of customised robots which pull in and fix the conduits to the sewer wall by means of metal ring clamps; tubular liners which expand and press the cable onto the inner wall of the pipe; or an elongated strip-shaped body which is bonded to the internal surface of a pipe.
  • German patent application DE 198 16 368 which is considered the closest state of the art, a cable carrier used for laying cables in e.g. drain channels, avoiding obstruction, is disclosed.
  • the cable carrier has a closed construction, with internal cable channels carrying cables, each with a protective tube and strips protect from the sides of the carrier which allow it to be attached to the inner wall of the e.g. drain channel.
  • the object of the present invention is to provide a conduit glue bag and a conduit glue strip to be glued against a portion of the internal surface of a underground pipe and methods for installing micro optical fiber cable inside said pipes which are low cost and provide easy cable exchange and repair.
  • the object is achieved according to the invention by a conduit glue bag according to claim 1, a conduit glue strip according to claim 4 and a method for installing a cable in a sewer pipe using a conduit glue strip according to claim 4.
  • Figure 1 A,B shows an embodiment of a conduit glue bag 10 in cross section and sideways respectively. It is designed as a conduit 1, which has a bag 2 over its exterior surface, the bag 2 being filled with glue fluid 3 and having a zip cord 4 longitudinally along its surface. It is built in such a manner that, after pulling the zip cord 4, the glue fluid 3 will pour out of the bag 2.
  • the conduit 1 can be made of some plastic material.
  • the bag 2 is made of polyester felt material with inner PE coating and the glue material 3 inside the bag belongs to the acrylate glue family, which is also suitable for wet ground, such as silanmodified glue, or glasfiber epoxy resin and is kept in fluid form.
  • conduit 1 it is also advantageous to cover more than one conduit 1 with the glue bag 2 or having a conduit 1 divided with spacers or equipped with more inner conduits.
  • Figure 2 shows the cross-section of an underground pipe 5 with a conduit glue strip glued to the inner surface 6 of said pipe.
  • the conduit glue strip is made out of four conduits 1 adhered to the inner wall 6 of said pipe by means of a glue material 3 which was originally confined inside the bags 2 as already explained above.
  • the zip cord 4 of the bag 2 will be pulled and the glue fluid 3 will pour out of the bag 2 and over the inner surface 6 of the pipe. Simultaneously the conduit glue bag 10 will be pressed to ensure an entire glue 3 contact between the conduits 1 and the wall 6 to increase the cohesive effects. Hot water will be introduced later inside the conduit 1 to activate the glue 3 function and form a cohesive conduit glue strip adhered to the inner wall 6 of the pipe 5.
  • micro optical fiber cable (not shown) can be blown or pulled at any time into the conduit 1.
  • Figure 3 shows a cross-section of a pipe 5 with a conduit glue strip glued to the inner surface 6 of said pipe.
  • the conduit glue strip comprises an elongated strip body soft material 7 with four canals 8 which extend lengthwise of the pipe 5 and a glue layer 9 in charge of adhering the conduit glue strip.
  • the soft material 7 is made of polyester felt material with inner PE coating.
  • the glue layer 9 belongs to the acrylate glue family, which is also suitable for wet ground, such as silanmodified glue.
  • the conduit glue strip glue layer 9 is protected with thin foil (not shown) or similar protection tape, preventing it from soiling by transport and pulling into the sewer pipes.
  • the protective foil or tape is put off and simultaneously the strip pressed and glued against the inner surface 5 of the pipe 6.
  • Hot water is later introduced into the internal conduit strip canals 8 to activate the glue layer 9 function. Alternatively, hot water can also be used to loose the protection tape.
  • micro optical fiber cable (not shown) can be blown or pulled at any time into the canals 8.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electric Cable Installation (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Supports For Pipes And Cables (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Sewage (AREA)

Abstract

The invention relates to a conduit glue bag which comprises a conduit element and a bag filled with glue fluid which extends over the exterior surface of the conduit, the bag having a zip cord along it and being built in such a manner that after pulling the zip cord, the glue fluid pours out of the bag. It further relates to conduit glue strips and methods for installing cable inside a sewer pipe. <IMAGE>

Description

Field of the Invention and Related Art
The invention relates to a conduit glue bag and conduit glue strips which shall be glued to the inner wall of a sewer pipe and methods for installing a cable in said sewer pipe by making use of said conduit glue strips.
Using of sewer pipes or other underground supply conduits for laying communication cables is a possibility already being exploited to lower the costs of underground work for communications subscriber access. It also enables subscriber access of this kind to be extended , which is becoming increasingly important owing to the multiplicity of operators. Some known techniques for laying communication cables in sewer pipes are for example the use of customised robots which pull in and fix the conduits to the sewer wall by means of metal ring clamps; tubular liners which expand and press the cable onto the inner wall of the pipe; or an elongated strip-shaped body which is bonded to the internal surface of a pipe.
In U.S. Pat. Application No. 2001010781 for example, it is disclosed a method for laying data cables in underground pipes which uses an elongated strip body adhered to a portion of the pipe and which has at least one cable confined in such body, the method comprising the steps of confining at least one cable in said body of settable material, inserting the body into the pipe prior to setting of the material of such body, introducing into the pipe a deformable tubular liner, expanding the liner from within to thus urge the body against the internal surface of the pipe, and causing the body to set or bond the body to the internal surface of the pipe. A drawback of such proposal is that the cable shall be laid inside the pipe together with the strip body, and thus the need to repeat the laying process every time new cabling is needed.
Also in German patent application DE 198 16 368, which is considered the closest state of the art, a cable carrier used for laying cables in e.g. drain channels, avoiding obstruction, is disclosed. The cable carrier has a closed construction, with internal cable channels carrying cables, each with a protective tube and strips protect from the sides of the carrier which allow it to be attached to the inner wall of the e.g. drain channel.
Object of the Invention
The object of the present invention is to provide a conduit glue bag and a conduit glue strip to be glued against a portion of the internal surface of a underground pipe and methods for installing micro optical fiber cable inside said pipes which are low cost and provide easy cable exchange and repair.
The object is achieved according to the invention by a conduit glue bag according to claim 1, a conduit glue strip according to claim 4 and a method for installing a cable in a sewer pipe using a conduit glue strip according to claim 4.
Standard methods for inspection, cleaning and repair of sewer canals can be applied to the installed system. Advantageous configurations of the invention emerge from the dependent claims, the following description and the drawings.
Brief Description of the Drawings
An embodiment example of the invention is now explained with the aid of Figs. 1 to 3.
  • Fig. 1 A,B shows an embodiment of a conduit glue bag according to the invention, in cross section and sideways respectively.
  • Fig. 2 shows the cross-section of an underground pipe with a conduit glue strip according to the invention, made out of a number of conduit glue bags adhered to the inner wall of the pipe.
  • Fig. 3 shows the cross-section of an underground pipe with a conduit glue strip made out of a strip-shaped body adhered to the inner wall of the pipe.
    • Detailed Description of the Drawings
    Figure 1 A,B shows an embodiment of a conduit glue bag 10 in cross section and sideways respectively. It is designed as a conduit 1, which has a bag 2 over its exterior surface, the bag 2 being filled with glue fluid 3 and having a zip cord 4 longitudinally along its surface. It is built in such a manner that, after pulling the zip cord 4, the glue fluid 3 will pour out of the bag 2.
    The conduit 1 can be made of some plastic material. The bag 2 is made of polyester felt material with inner PE coating and the glue material 3 inside the bag belongs to the acrylate glue family, which is also suitable for wet ground, such as silanmodified glue, or glasfiber epoxy resin and is kept in fluid form.
    It is also advantageous to cover more than one conduit 1 with the glue bag 2 or having a conduit 1 divided with spacers or equipped with more inner conduits.
    Figure 2 shows the cross-section of an underground pipe 5 with a conduit glue strip glued to the inner surface 6 of said pipe. The conduit glue strip is made out of four conduits 1 adhered to the inner wall 6 of said pipe by means of a glue material 3 which was originally confined inside the bags 2 as already explained above.
    After positioning of the conduit glue bag 10 on the desired position inside the pipe 5, preferably at the bottom of said pipe, the zip cord 4 of the bag 2 will be pulled and the glue fluid 3 will pour out of the bag 2 and over the inner surface 6 of the pipe. Simultaneously the conduit glue bag 10 will be pressed to ensure an entire glue 3 contact between the conduits 1 and the wall 6 to increase the cohesive effects. Hot water will be introduced later inside the conduit 1 to activate the glue 3 function and form a cohesive conduit glue strip adhered to the inner wall 6 of the pipe 5.
    Once the conduit glue strip is formed, micro optical fiber cable (not shown) can be blown or pulled at any time into the conduit 1.
    Figure 3 shows a cross-section of a pipe 5 with a conduit glue strip glued to the inner surface 6 of said pipe. The conduit glue strip comprises an elongated strip body soft material 7 with four canals 8 which extend lengthwise of the pipe 5 and a glue layer 9 in charge of adhering the conduit glue strip.
    The soft material 7 is made of polyester felt material with inner PE coating. The glue layer 9 belongs to the acrylate glue family, which is also suitable for wet ground, such as silanmodified glue.
    In a state previous to the gluing of the conduit glue strip to the inner wall of the pipe, the conduit glue strip glue layer 9 is protected with thin foil (not shown) or similar protection tape, preventing it from soiling by transport and pulling into the sewer pipes.
    Once the conduit glue strip is laid on the desired position inside the pipe 5, preferably at the bottom of said pipe, the protective foil or tape is put off and simultaneously the strip pressed and glued against the inner surface 5 of the pipe 6. Hot water is later introduced into the internal conduit strip canals 8 to activate the glue layer 9 function. Alternatively, hot water can also be used to loose the protection tape.
    Once the conduit glue strip is successfully installed, micro optical fiber cable (not shown) can be blown or pulled at any time into the canals 8.

    Claims (5)

    1. Conduit glue bag (10) characterized in that said bag comprises at least one conduit element (1) and a bag (2) filled with glue fluid (3) which extends over the exterior surface of said at least one conduit (1), said bag (2) having a zip cord (4) along it and being built in such a manner that after pulling the zip cord (4), the glue fluid (3) pours out of the bag (2).
    2. Conduit glue bag (10) according to claim 1 characterized in that the glue fluid (3) belongs to the acrylate glue family such as elastic silanmodified glue or glassfiber epoxy resin.
    3. Conduit glue bag (10) according to claim 1 characterized in that the conduit (1) is made of some plastic material and the bag (2) is made of polyester felt with inner PE coating.
    4. Conduit glue strip to be glued against a portion of the internal surface (6) of an underground pipe (5), preferably at the bottom of the pipe, characterized in that said strip is made out of at least one conduit glue bag (10) according to claim 1.
    5. Method for installing a cable in a sewer pipe (5) using a conduit glue strip according to claim 4, characterized in that said method comprises the following steps:
      introducing at least one conduit glue bag (10) according to claim 1 inside said sewer pipe (5);
      pulling the zip cord (4) of the bag (2) to let the glue fluid (3) pour out over the sewer inner surface (6) and simultaneously pressing the conduit glue bag (10) on the installation position;
      activating the glue function of the glue fluid (3) by injecting hot water inside the conduit (1);
      blowing or pulling into said conduit (1) micro optical fiber cable.
    EP02360231A 2002-08-05 2002-08-05 Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe Expired - Lifetime EP1391973B1 (en)

    Priority Applications (4)

    Application Number Priority Date Filing Date Title
    EP02360231A EP1391973B1 (en) 2002-08-05 2002-08-05 Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe
    DE60202283T DE60202283D1 (en) 2002-08-05 2002-08-05 Pipe adhesive bags, pipe adhesive strips and methods for installing cables in sewage pipes
    AT02360231T ATE285135T1 (en) 2002-08-05 2002-08-05 PIPE ADHESIVE BAGS, PIPE ADHESIVE STRIPS AND METHOD FOR INSTALLING CABLES IN SEWER PIPES
    US10/609,576 US20040020822A1 (en) 2002-08-05 2003-07-01 Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP02360231A EP1391973B1 (en) 2002-08-05 2002-08-05 Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe

    Publications (2)

    Publication Number Publication Date
    EP1391973A1 EP1391973A1 (en) 2004-02-25
    EP1391973B1 true EP1391973B1 (en) 2004-12-15

    Family

    ID=30775899

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP02360231A Expired - Lifetime EP1391973B1 (en) 2002-08-05 2002-08-05 Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe

    Country Status (4)

    Country Link
    US (1) US20040020822A1 (en)
    EP (1) EP1391973B1 (en)
    AT (1) ATE285135T1 (en)
    DE (1) DE60202283D1 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2018167541A1 (en) * 2017-03-17 2018-09-20 Вадимс ДЕМЧЕНКО Module and set of modules for covering and arranging cables on a desk surface

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US7467873B2 (en) * 2005-10-14 2008-12-23 3M Innovative Properties Company Privacy film
    GB0814665D0 (en) * 2008-08-12 2008-09-17 Thomas Elfed Laying network cables in sewers

    Family Cites Families (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US2151206A (en) * 1936-01-14 1939-03-21 Geophysical Res Corp Drill stem section
    US4197033A (en) * 1978-02-22 1980-04-08 Raymond International Builders, Inc. Method of installing a pipeline
    US4954106A (en) * 1989-02-08 1990-09-04 Shuh Chin Lin Aquatic sports device
    FR2758917B1 (en) * 1997-01-24 1999-04-02 Segic Ingenierie SHEATH OR CONDUIT FOR THE PLACEMENT OF CABLES AND THE LIKE IN UNDERGROUND WORKS
    DE19816368B4 (en) * 1998-04-03 2004-07-29 Meyer & John Gmbh & Co Tief- Und Rohrleitungsbau Cable trunking and method for laying a cable trunking
    DE19921382C2 (en) * 1998-10-16 2001-01-18 Sabine Gruber Method for installing at least one line and / or an empty pipe in pipes that are used for supply or disposal, in particular sewer pipe systems or networks and the like.
    US20010010781A1 (en) * 1998-07-30 2001-08-02 Martin Prusak Method of laying data cables and the like in underground pipes and pipe-cable combinations
    ES2195582T3 (en) * 1998-07-30 2003-12-01 Prusate Foundation PROCEDURE FOR THE LAYING OF DATA CABLES.
    DE19861090C2 (en) * 1998-09-21 2002-11-28 D T I Dr Trippe Ingenieurgmbh Method for laying installation objects in channels, device for carrying out the method, installation robot for carrying out the method, and installed object

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2018167541A1 (en) * 2017-03-17 2018-09-20 Вадимс ДЕМЧЕНКО Module and set of modules for covering and arranging cables on a desk surface

    Also Published As

    Publication number Publication date
    ATE285135T1 (en) 2005-01-15
    EP1391973A1 (en) 2004-02-25
    US20040020822A1 (en) 2004-02-05
    DE60202283D1 (en) 2005-01-20

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